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How to check if a value exists in a dictionary (python)

... in case you wonder why... the reason is that each of the above returns a different type of object, which may or may not be well suited for lookup operations: >>> type(d.viewvalues()) <type 'dict_values'> >>> type(d.values()) <type 'list'> >>> type(d.itervalue...
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Subprocess changing directory

... To run your_command as a subprocess in a different directory, pass cwd parameter, as suggested in @wim's answer: import subprocess subprocess.check_call(['your_command', 'arg 1', 'arg 2'], cwd=working_dir) A child process can't change its parent's working directo...
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#ifdef in C#

... #if DEBUG bool bypassCheck=TRUE_OR_FALSE;//i will decide depending on what i am debugging #else bool bypassCheck = false; //NEVER bypass it #endif Make sure you have the checkbox to define DEBUG checked in your build propert...
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Iterate over each line in a string in PHP

...file or copy/paste the contents of the file into a textarea. I can easily differentiate between the two and put whichever one they entered into a string variable, but where do I go from there? ...
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Java array reflection: isArray vs. instanceof

Is there a preference or behavior difference between using: 8 Answers 8 ...
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AngularJS HTTP post to PHP and undefined

...$email = $request->email; $pass = $request->password; Alternately, if you are heavily relying on $_POST functionality, you can form a query string like email=someemail@email.com&password=somepassword and send that as data. Make sure that this query string is URL encoded. If manually buil...
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Updating packages in Emacs

I have the following setup for packages (not sure if there is a better recommended one): 4 Answers ...
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Using a custom typeface in Android

... Is there a way to do this from the XML? No, sorry. You can only specify the built-in typefaces through XML. Is there a way to do it from code in one place, to say that the whole application and all the components should use the custom typeface instead of the default one? Not tha...
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Determining the last changelist synced to in Perforce

...: p4 changes -m1 @clientname they note a few gotchas: This only works if you have not submitted anything from the workspace in question. It is also possible that a client workspace is not synced to any specific changelist. and there's an additional gotcha they don't mention: If the highes...
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Add primary key to existing table

...ption in the case of composite PKs for performance on insertion date basis if that is important for you. – Shiv Feb 10 '17 at 5:23 add a comment  |  ...